diff --git a/reference/intl/locale/filter-matches.xml b/reference/intl/locale/filter-matches.xml
index d78df7c81d..0328592026 100755
--- a/reference/intl/locale/filter-matches.xml
+++ b/reference/intl/locale/filter-matches.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- $Revision: 1.4 $ -->
+<!-- $Revision: 1.5 $ -->
 <refentry xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="locale.filtermatches">
  <refnamediv>
   <refname>Locale::filterMatches</refname>
@@ -18,6 +18,7 @@
    <methodname>Locale::filterMatches</methodname>
    <methodparam><type>string</type><parameter>langtag</parameter></methodparam>
    <methodparam><type>string</type><parameter>locale</parameter></methodparam>
+   <methodparam><type>bool</type><parameter>canonicalize</parameter></methodparam>
   </methodsynopsis>
   <para>
    Procedural style
@@ -27,6 +28,7 @@
    <methodname>locale_filter_matches</methodname>
    <methodparam><type>string</type><parameter>langtag</parameter></methodparam>
    <methodparam><type>string</type><parameter>locale</parameter></methodparam>
+   <methodparam><type>bool</type><parameter>canonicalize</parameter></methodparam>
   </methodsynopsis>
   <para>
    Checks if a $langtag filter matches with $locale according to RFC 4647's
@@ -54,6 +56,15 @@
       </para>
      </listitem>
     </varlistentry>
+    <varlistentry>
+     <term><parameter>canonicalize</parameter></term>
+     <listitem>
+     <para>
+      If true, the arguments will be converted to canonical form before
+      matching. 
+     </para>
+     </listitem>
+    </varlistentry>
    </variablelist>
   </para>
  </refsect1>
@@ -73,9 +84,9 @@
    <programlisting role="php">
 <![CDATA[
 <?php
-echo (locale_filter_matches('de-DEVA','de-DE')) ? "Matches" : "Does not match"; 
+echo (locale_filter_matches('de-DEVA','de-DE', false)) ? "Matches" : "Does not match"; 
 echo '; ';
-echo (locale_filter_matches('de-DE_1996','de-DE')) ? "Matches" : "Does not match"; 
+echo (locale_filter_matches('de-DE_1996','de-DE', false)) ? "Matches" : "Does not match"; 
 ?>
 ]]>
    </programlisting>
@@ -85,9 +96,9 @@ echo (locale_filter_matches('de-DE_1996','de-DE')) ? "Matches" : "Does not match
    <programlisting role="php">
 <![CDATA[
 <?php
-echo (Locale::filter_matches('de-DEVA','de-DE')) ? "Matches" : "Does not match"; 
+echo (Locale::filterMatches('de-DEVA','de-DE', false)) ? "Matches" : "Does not match"; 
 echo '; ';
-echo (Locale::filter_matches('de-DE-1996','de-DE')) ? "Matches" : "Does not match"; 
+echo (Locale::filterMatches('de-DE-1996','de-DE', false)) ? "Matches" : "Does not match"; 
 ?>
 ]]>
    </programlisting>